Smoke and fume filter.



E. H. GAGNON.

SMOKE AND FUME FILTER.

APPLICATION FILED MAY 23,1914.

1 1 1 6,053, Patented Nov. 3, 1914.

2 SHEETS-SHEET 1.

IN1/awo@ ATTORNEYS E. H. GAGNON.

SMOKE AND vFUME FILTER. Y APPLICATION FILED MAY 23,1914.

Patented Nov. 3, 1914.

2 SHEETS-SHEET 2.

n my Wa 6 ATTORNEYS onirica.

ERNEST H. GAG-NON, 0F BILLING-S, IVION'IANA.

SMOKE ANI) FUME FILTER.

Specification of Letters Patent.

Patented Nov. 3, 1914.

Application led May 23, 1914. Serial No. 840,500.

To all whom it may concern: l Y Be it known that I, ERNEST H. GAGNoN, a citizen of the United States, and a resident of Billings, in the county oi' Yellowstone and State of Montana, have invented a new and Improved Smoke and Fume Filter, of which the following is a full, clear, and exact description. a y

This invention relates toimprovements in devices for cleaning and removing various substances from smoke fumes and the like, and particularly to devices for filtering and cleaning the smoke and fumes from smelters and other similar devices.

The object in view is to provide an improved smoke and fume `filter which will .remove various matter from smoke and fumes by a washing process so that the cleaned smoke may be discharged without liability of injury to surroundin vegetation.`

A further object of the invention is toprovide a smoke andffume lter arranged with means for chilling the smoke and fumes and then washing the same in a liquid, after quantities.

which the cleaned smoke is discharged at one point, and the precipitate is discharged at another point. I

In carrying outthe obJects of the invention a receiver of any suitable kind and shape maybe provided which is formed with a discharge pipe at the uppe'r'part and a precipitate discharge structure at the bottom. l rIhe precipitate discharge structure includes a discharge pipe and preferably a pair of valves so that if desired the precipitate may be discharged in predetermined Arranged in the body of the receptacle or tank is a deflectinf member substantially vconical in shape Witi a point extending into`- a fume and smoke carrying pipe, which pipe is connected in any desired way with one or more smelters or other smoke discharging devices. Means are pro vided for supplying water to the receptacle or tank for maintaining a predetermined level whereby the smoke discharged through said pipe into the receptacle will be forced through part of thegwater in the tank an thereby washed and cleaned.

In the accompanying drawings Figure 1 is a side view of an embodiment of the invention shown connected to a smelting device; Fig. 2 is a longitudinal horizontal section through Fig. l approximately 0n line 2 2, the same being shown on an enlarged scale; Fig. 3 is a horizontal vertical section through the filtering device shown in Fig. 1; Fig. 4 is a section through Fig. 3 on lines Referring to theaccompanying drawings by numeral, 1 indicates a base of any desired kind upon which is arranged a smelting device 2 of any desired kind, and also a filter 3 embodying the invention. The filter 3 is forniedvwith a tank 4 which of course may be of any desired size, and also of any desired shape. Connected with the upper part of tank 4 is a pipe 5 for discharging the cleaned smoke. Connected with the bottom of the tank 4 is a discharge pipe 6 provided with valves 7 and 8 preferably of a gate type. These valves are spaced apart and are adapted to be operated so that one is closed as the other is opened. This arrangement will prevent the water 9 in tank 4 fronibeing discharged. Howeven during the operation of the device when the same is running at a substantially even pressure it may be possible to leave both gates slightly open so that there will be a small continuous discharge .of the precipitate from the bottom of the tank. Arranged' in tank 4 are support-ing beams 10 of any desired description which are used for supporting la conicalshaped baflling member 11, whichl baffling member has the sides concaved to an appreciable eX- tent, as shown in Fig. 3. The point 12 of member 11 is designed to extend into pipe 13, whereby fumes of smoke from pipe 13 will strike the concaved sides of the baffling plate 11 and follow said sides to a pointbeneath the surface oi' the water 9, and will then pass out pipe 5. In the'upward travel of the fumes and smoke the same is washed and cleaned, and also by the` fumes and 1 smoke coming in contact with the liquid various substances will be precipitated so that when the smoke is discharged the saine is substantially free from metals and other solid matter. The lower end of pipe 13 is held in place by suitable braces 14 so that the point 12 will remain substantially central of the pipe at all times. Pipel3 is provided with a jacket 15 whereby cooling fluid, as for instance water may continually surround pipe 13.- In order to prevent the AWater surrounding pipe 13 from becoming heated to any considerable extent the same is discharged out openings 16 and also a plurality of comparatively small openings 17 near the end of tube 13. lAn overflow pipe 18 is provided so as to maintain the level of ICO water substantially as shown in Fig. 3. It will be observedl that water is continually Jfed into tank 4 from the water jacket 15 but if this supply of water is not suiiicient an eXtrasupply may be provided by turning on valve 19 in pipe `20, which pipe is connected with any suitable source of supply. It is to be noted that a certain quantity of the water will be removed with-the precipitate and also some will probably pass out with the smoke in the form of vapor so that this continuous supply of water is necessary for a successful operation of the device. In order that the smoke and fumes from thesmelter 2 may be drawn from the smelter and forced into the water 9, air jets 21 and 22 (Fig. 2) are provided, which air jets are supplied with air by any suitable means, as for instance fans 23 and 24 driven by any suitable power. This arrangement for supplying air will act as means for drawing the fumes from the smelter and for forcing the same to the filter 3. As the -air mixes with the fumes and smoke a chilling effect is produced and this chilling effect is assisted by the water in water jacket 15 so that the fumes and 4smoke are deprived of an appreciable amount of heat before they reach the water 9. The water jacket 15 may be supplied with water from any suitable supply, as for instance from the usual hydrant or from the water jacket of the smelter 2 in case a water jacket is used.

l. In a filtering' device for smelters and the like, a pipe for receiving the fumes and smoke-from the smelter, a tank designed to have maintainedy therein a predetermined quantity of water, said pipe having one end extending into said tank beneath the surface of said water, a jacket for said pipe, means for supplying water to said jacket, said jacket having openings whereby the water inthe jacket is discharged into said tank, means for supplying a draft in said pipe whereby the smoke and fumes from said smelter are discharged into said tank `from beneath said water, means for directing the filtered smoke-and fumes from said tank, and means for regulating the discharge of tlieprecipitate from said smoke and fumes. l

2. In a smoke and fume filter for smelters and the like, a tank adapted to contain a given quantity of water, a pipe :for conveying the smoke and fumes from a smelter to said tank, said pipe having the end in said tank projecting below the level of said water, a water jacket surrounding said pipe, said pipe being provided with apertures near the end, and said water jacket being provided with apertures in the end, whereby the water in said jacket is discharged into said tank, part directly into the tank and part through said smoke and fume pi e -into said tank, means for spreading t e smoke and fumes after the same enters the Y water in said tank, and means for guiding the cleaned smoke from the tank. 1

3. In a filtering device for smelters and the like, a pipe for receiving the fumes of smoke from a smelter, a tank designed to have maintained therein a predetermined quantity of liquid, saidV ipe having one end extendingvinto said tan a jacket for said pipe, means for supplying a liquid to said jacket, said jacket having openings whereby the water in the jacket is discharged into said tank, means for supplyingv a draft in vsaid pipe whereby the smoke and Vfumes from said smelter are discharged into said tank, and means for directing the filtered smoke and fumes from said tank.

4. In a smoke and fume filter for smelters and the like, a pipe for leading the smokev and fumes from the smelter, a jacket surrounding said pipe, said pipe having an yopening adjacent the end thereof whereby `the water. in said jacket will How into the pipe and fromthence into a tank, means for supplying a jet of air to said pipe for drawiing the smoke and u'mes from said smelter and'forcing the same through 'the discharge end of the pipe, a tank surrounding the diszcharge end of said pipe, means. for supplying water to said jacket, means for supplying water to said tank, and means for directing the cleaned smoke to a discharge point. 5.'. Ina smoke and fume lterv for smelters 4and the like, a pipe for leading the smoke Aand fumes from the smelter, a jacketl surrounding said pipe, means for supplying a ,cooling agent vto saidv jacket, said jacket being formed with an opening whereby said Acooling agent may circulate through said jacket, means for supplying a jet of air to said pipe for drawing the smoke and fumes from said smelter and forcing the same through the discharge end 'of said pipe, a tank surrounding the discharge end of' said pipe, means for supplying water to said tank, the water in said tank being normally above the end of said pipe, and means for directingv lthe cleaned'smoke toa discharge point. 'y 4 In testimony whereof I have signed my' two subscribing witnesses. l

ERNEST H. GAGNON.

name to this specification in the presence of Witnesses:

A. L. KITCHIN, PHILIP D. RoLnHaUs. 

